Meaning

1 senses
  1. (UK, historical, uncountable)A cheap fuel consisting of slack (“coal dust”) and nuts (“small lumps of coal”); unlike other solid fuels it was not rationed during the period after World War II.

Origin

From nutty (“containing nuts”) + slack.

From nutty (“containing nuts”) + slack.

Wiktionary, CC BY-SA 4.0 · source

See also

neighbours in the dictionary
nutty slack — meaning, examples, forms, synonyms | Krumeto